DeTTECT/.github/workflows/build_Docker_image_auto.yml

name: Build Docker image - on release
on:
  release:
    types:
      - created
jobs:
  build:
    runs-on: ubuntu-latest
    steps:
        # Checks-out the repository under $GITHUB_WORKSPACE, so the job can access it
      - name: Checkout code
        uses: actions/checkout@v2

      - name: Prepare
        id: prep
        run: |
          DOCKER_IMAGE=rabobankcdc/dettect
          VERSION=edge
          if [[ $GITHUB_REF == refs/tags/* ]]; then
            VERSION=${GITHUB_REF#refs/tags/}
          elif [[ $GITHUB_REF == refs/heads/* ]]; then
            VERSION=$(echo ${GITHUB_REF#refs/heads/} | sed -r 's#/+#-#g')
          elif [[ $GITHUB_REF == refs/pull/* ]]; then
            VERSION=pr-${{ github.event.number }}
          fi
          TAGS="${DOCKER_IMAGE}:${VERSION}"
          echo ::set-output name=tags::${TAGS}

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v1

      - name: Login to DockerHub
        uses: docker/login-action@v1
        with:
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_PASSWORD }}

      - name: Build and push Docker images
        uses: docker/build-push-action@v2
        with:
          pull: true
          push: true
          tags: rabobankcdc/dettect:latest, ${{ steps.prep.outputs.tags }}